Nrog rau txoj kev loj hlob sai ntawm industrialization thiab urbanisation, siab concentration dej khib nyiab tau dhau los ua ib qho teeb meem loj zuj zus. High-concentration wastewater tsis tsuas yog muaj ntau cov organic teeb meem, inorganic tshuaj, hnyav hlau thiab lwm yam teeb meem, thiab nws concentration deb tshaj tus tsim muaj peev xwm ntawm cov pa dej khib nyiab kho chaw. Yog li ntawd, high-concentration wastewater kho thiab tso tawm yog ib qho tseem ceeb tshwj xeeb.
1. Cov ntsiab lus thiab cov yam ntxwv ntawm cov dej khib nyiab siab heev
High concentration ntawm cov dej khib nyiab, feem ntau yog hais txog cov dej khib nyiab uas muaj cov ntsiab lus siab ntawm cov organic teeb meem, cov hlau hnyav, tshuaj lom thiab phom sij thiab lwm yam kuab paug. Cov ntsiab lus ntawm cov pa phem hauv cov dej khib nyiab deb tshaj li cov dej khib nyiab dav dav thiab nyuaj rau kev kho. Nws tuaj yeem muaj ntau hom kev ua qias tuaj, xws li cov organics, cov hlau hnyav, thiab cov khoom siv hluav taws xob. Qee cov kuab paug tuaj yeem ua rau muaj kev cuam tshuam rau cov kab mob, cuam tshuam rau kev kho mob lom, thiab nyuaj rau kev tshem tawm los ntawm cov qauv kev kho mob lom neeg.
2. Cov xwm txheej ntawm kev tsim cov dej khib nyiab siab
Kev tsim tshuaj lom neeg: Cov dej khib nyiab tsim tawm thaum lub sijhawm tsim tshuaj lom neeg feem ntau muaj cov organic teeb meem loj, cov hlau hnyav thiab lwm yam kuab paug.
Kev lag luam kws tshuaj: Cov dej khib nyiab tshuaj feem ntau muaj cov organic teeb meem siab, tshuaj tua kab mob, thiab lwm yam, thiab nyuaj rau kho.
Dyestuff thiab textile kev lag luam: Cov dej khib nyiab tsim los ntawm cov kev lag luam no feem ntau muaj ntau qhov nyuaj rau degrade organics thiab chromaticity.
Electroplating thiab metallurgy: cov txheej txheem ntawm electroplating thiab metallurgy yuav tsim cov dej khib nyiab uas muaj cov hlau hnyav thiab cov tshuaj lom.
3. Cov txheej txheem tseem ceeb ntawm cov dej phwj tuaj kho cov nroj tsuag siab
High concentration dej phwj kho nroj tsuag, feem ntau yog los ntawm lub cev los yog tshuaj txoj kev los tshem tawm cov khoom loj nyob rau hauv cov dej khib nyiab, tshem tawm cov khib nyiab, thiab lwm yam, los tsim tej yam kev mob rau kev kho mob tom ntej. Kuj tseem yuav dhau los ntawm xws li Fenton oxidation, ozone oxidation thiab lwm yam kev siv tshuab oxidation siab heev, los ntawm kev tsim cov oxidants muaj zog yuav nyuaj rau degrade organic teeb meem rau hauv cov khoom yooj yim degradable. Cov metabolism ntawm cov kab mob yog siv los tshem tawm cov organic teeb meem ntawm cov dej khib nyiab. Rau cov dej khib nyiab heev, kev sib xyaw ua ke xws li anaerobic thiab aerobic tuaj yeem siv los txhim kho kev kho mob. Cov tshuaj yaj hauv cov dej khib nyiab kuj tseem tuaj yeem raug tshem tawm los ntawm txoj kev siv lub cev los ntawm cov txheej txheem sib cais xws li ultrafiltration thiab thim rov qab osmosis. Heavy hlau kho technologies xws li tshuaj nag lossis daus, ion pauv thiab adsorption yog siv los tshem tawm cov hlau hnyav ions los ntawm cov dej khib nyiab.
Yog li ntawd, rau qhov siab ntawm cov dej phwj tuaj kho cov nroj tsuag, kom ntseeg tau tias cov dej ntws tau raws li tus qauv, kev xaiv tsim nyog ntawm cov txheej txheem kev kho mob, kev tswj xyuas nruj ntawm cov txheej txheem kho, ntxiv dag zog rau kev kho ua ntej, ua kom zoo dua qhov kev ua haujlwm tsis tu ncua nrog rau kev soj ntsuam tas li thiab Kev ntsuam xyuas yog ib qho tseem ceeb heev, yog tias pom muaj teeb meem, siv sij hawm ntsuas los kho.
High concentration dej phwj kho nroj tsuag vim qhov tshwj xeeb ntawm nws cov dej tsis zoo, rau cov cuab yeej muaj cov kev cai nruj, yuav tsum muaj cov khoom siv technology zoo, kev ua haujlwm, nrog rau lub tswv yim ntawm cov xwm txheej hauv zos, txhawm rau xyuas kom meej tias qhov siab. concentration ntawm cov khoom siv kho cov dej khib nyiab kom ua tau raws li cov qauv ntawm cov effluent. Liding Environmental Protection yog kaum-xyoo laus lub Hoobkas hauv kev lag luam dej khib nyiab, raws li Jiangsu, tawg thoob plaws lub tebchaws, ntsib txawv teb chaws, nrog cov khoom lag luam nruj tswj xyuas pab pawg.
Post lub sij hawm: Jun-06-2024